CFI Systems designs, manufactures and integrates thermal cleaning and paint stripping ovens for removing paint, powder coating, resins, adhesives, polymers and other organic deposits from metal parts and production tooling, with controlled temperatures, afterburning and automated cycle management.
Terminology: in some industrial markets, particularly North America, this equipment is also commonly referred to as a burn-off oven.
Thermal cleaning is particularly effective where metal parts need to be cleaned repeatedly and consistently, while reducing dependence on solvents, chemical stripping baths or intensive manual cleaning.
The cycle is engineered around the part material, geometry, mass, coating type and quantity of organic material to be removed.
Cleaning of hooks, racks, grids, skids, frames, jigs and other fixtures used on liquid-paint or powder-coating lines, helping restore usable surfaces and reliable electrical contact for electrostatic coating processes.
Removal of paint, resins, adhesives, oils, greases and selected polymers from metal components, moulds and production tooling once compatibility with the thermal process has been confirmed.
Controlled removal of insulating resins and varnishes from stators, windings and components intended for regeneration, with particular attention to thermal control and recovery of reusable metallic parts.
Other potential applications: plastics-processing components, extrusion tooling, maintenance parts and metal items contaminated with organic materials. Feasibility is assessed case by case according to the contaminant and sensitivity of the component.
The oven gradually brings the loaded parts to a defined thermal condition so that paints, resins or polymers decompose in a controlled manner. The objective is not simply to expose the parts to direct flame: heat input, air and the rate of gas release are managed to protect the metal components and control the process.
Pyrolysis gases are then routed to an afterburning chamber where temperature, residence time and combustion air are coordinated to oxidise them before discharge or further treatment where the application requires it.
Cleaning quality depends on the coherence between chamber design, heat input, gas circulation, afterburning, control system and the finishing operations required after the thermal cycle.
An effective thermal cleaning oven must do more than reach a setpoint. It must distribute energy evenly through the chamber and avoid hot spots that could distort or weaken sensitive components.
CFI Systems studies useful volume, gas circulation, heater arrangement, thermal load and control sequences to target repeatable treatment from one batch to the next.
Chamber and loading configuration must suit the shape and mass of the parts, the site's handling method and the required cycle frequency. Loading equipment can therefore be engineered around the application rather than standardised.
Gas composition is directly related to the paints, resins, polymers and other products present on the parts. Understanding those contaminants is therefore essential when defining afterburning and any additional gas-treatment stage.
Thermal oxidation of gases and vapours released during cleaning, with coordinated control of heat input and combustion air.
Assessment of coating composition, particularly where halogenated or potentially aggressive compounds may be present.
A supplementary gas-treatment stage can be engineered where the contaminant, site conditions or applicable regulation make it necessary.
Management of draft, temperatures, instrumentation and interaction with the stack.
Coating compatibility must be confirmed before treatment. Materials containing PVC, PTFE or other halogenated compounds can generate corrosive or acidic gases and may require a specific oven and gas-treatment architecture.
The control system coordinates heat-up, heating, gas circulation, air input, afterburning, cooling and safety functions.
Recipes for different families of parts and contaminants help standardise cleaning while preserving the ability to adjust parameters when the product or batch changes.
Thermal cleaning can reduce chemical use, manual cleaning and direct abrasive action on components while treating multiple parts in a controlled batch cycle.
The best method still depends on material, geometry and contaminant. For some applications, a chemical, mechanical, vacuum, fluidised-bed or other cleaning technology may be more suitable.
Controlled thermal removal of insulating resins can support the recovery of stators, shafts, housings and conductors during rewinding and motor-regeneration work. This duty requires particularly careful regulation to protect the components intended for reuse.
Controlled decomposition of insulating resin and varnish before dismantling or conductor recovery.
Cycle definition aimed at limiting thermal stress on mechanical and magnetic components that must be retained.
Depending on the project, a controlled drying or curing function can be studied for resin treatment after refurbishment or rewinding.
CFI Systems can assess existing equipment and determine whether control, thermal uniformity, safety, afterburning or availability can be improved while retaining a sound oven structure.
CFI Systems can support a new installation, retrofit or targeted technical package using samples, tests, production data or the customer's technical specification as the starting point.
CFI Systems deliberately keeps chamber dimensions, loading arrangements and cycle philosophy open until the parts, contaminants, operating rhythm and environmental requirements of the site have been assessed.
Temperature uniformity, rate of gas release, afterburning, safety and repeatability have to be engineered together.
Metallurgy, mass, geometry and thermal sensitivity guide the cycle.
Paint, powder coating, resin, adhesive and polymers do not generate the same gases or residues.
Afterburning and any additional flue-gas treatment are part of the equipment concept.
Loading, recipes and cycle design are aligned with the customer's real production organisation.
Temperature, cycle duration and oven configuration are selected according to the parts and contaminants that need to be removed.
It uses a controlled heating cycle to decompose organic coatings and contaminants on metal parts. The gases generated are then treated — typically by afterburning — before discharge. The term burn-off oven is also used for this type of equipment in some markets.
Depending on the application, the process can remove liquid and powder paint, resins, adhesives, oils, greases and many polymers. Compatibility must be confirmed from both the contaminant and the material of the component.
Typical applications include paint-line hooks and hangers, racks, grids, skids, jigs, metal components, selected moulds and production tooling, as well as stators and motor windings intended for regeneration.
Part protection is a core element of cycle design. Temperature, heat-up ramps, uniformity and cycle duration are matched to material, geometry and mass. Particularly sensitive components require specific validation.
Vapours and gases generated by decomposition of organic material are routed to an afterburning stage. Depending on contaminant composition and applicable environmental requirements, additional gas treatment may be necessary.
They require a specific study because decomposition can generate corrosive or acidic compounds. Oven materials and the gas-treatment line must be appropriate before the process can be validated.
Yes. CFI Systems can study horizontal trolley loading, vertical or suspended loading, as well as dedicated baskets, racks and fixtures according to the parts and the site's handling method.
Yes, depending on its condition and architecture. Automation, combustion, instrumentation, thermal circulation, afterburning, loading and safety functions can all be assessed for modernisation.
CFI Systems also develops cremation systems, industrial incineration systems, pyrolysis processes, precious-metal recovery, combustion, filtration and energy-recovery solutions.
New thermal cleaning or paint stripping oven, paint-line fixtures, resin or polymer removal, motor windings, modernisation or automation: CFI Systems studies the solution from the real production requirement.
